Finance Assets and Lessor Operating Leases (Lease Income) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Lessor, Lease, Description [Line Items]
Profit recognized at commencement	$ 32,057	$ 21,271	$ 64,365	$ 51,179
Interest income	47,770	52,277	96,266	106,083
Total lease income from sales-type leases	$ 79,827	73,548	$ 160,631	157,262
As Previously Reported
Lessor, Lease, Description [Line Items]
Total lease income from sales-type leases		$ 55,000		$ 119,000